Witness Bill Baroni testifies at a hearing held by New Jersey lawmakers concerning lane closures on the George Washington Bridge.

UPDATED | A New Jersey lawmaker who chairs a committee probing why traffic lanes leading to the George Washington Bridge were closed said he may issue additional subpoenas for two New Jersey appointees to the Port Authority of New York and New Jersey.

Assemblyman John Wisniewski, the chair of the lower house’s transportation committee, said Monday may he issue subpoenas to Bill Baroni, David Wildstein and the mayor of Fort Lee, N.J., requiring them to testify under oath. The Assembly committee’s subpoena power runs out on Jan. 14.

Both Mr. Wildstein and Mr. Baroni have resigned in the wake of the controversy, where lanes in Fort Lee leading up ot the bridge were closed for a week, causing major traffic jams. The administration has said that the closures were due to a traffic study. Some Democrats allege it was to punish Fort Lee mayor Mark Sokolich for not endorsing Mr. Christie.

Legal counsel for Messrs. Baroni and Wildstein delivered the documents by Monday night, according to Assembly Democrats.

Monday is the deadline for documents, texts and other forms of communications between Port Authority officials over the bridge matter to be delivered to Trenton. Lawyers for Mr. Wildstein and Mr. Baroni didn’t immiedately respond to requests for comment.

The documents number in the hundreds of pages. Legislative staffers have been sorting and scanning them, and Mr. Wisniewski said he expects to begin analyzing a full set of the documents Tuesday.

From the material he has read so far, Mr. Wisniewski said there was a record of communication between Mr. Sokolich and the Port Authority seeking answers as to why the lanes were closed.